About to buy a 2010 Prius and did a CarFax on it before leaving and found out that the car was originally bought and registered in Pensilvania. Now it's registered in California and I'm in California but I heard somewhere that there is some sort of challenge with taxes or something if I buy and try to change title and register the car in my name if hybrid was first bought and sold out of state. Been Googling all night for straight dope on this without much luck. Could someone please give me the details on this?

Thank you